WO2002060075A3 - Enhanced conversion of wideband signals to narrowband signals - Google Patents
Enhanced conversion of wideband signals to narrowband signals Download PDFInfo
- Publication number
- WO2002060075A3 WO2002060075A3 PCT/US2002/001901 US0201901W WO02060075A3 WO 2002060075 A3 WO2002060075 A3 WO 2002060075A3 US 0201901 W US0201901 W US 0201901W WO 02060075 A3 WO02060075 A3 WO 02060075A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- narrowband
- wideband
- signal
- signals
- speech
- Prior art date
Links
- 238000006243 chemical reaction Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/04—Time compression or expansion
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/26—Pre-filtering or post-filtering
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Quality & Reliability (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002560291A JP4330879B2 (en) | 2001-01-24 | 2002-01-23 | Enhanced conversion of wideband signals to narrowband signals |
KR1020037009723A KR100856684B1 (en) | 2001-01-24 | 2002-01-23 | Enhanced conversion of wideband signals to narrowband signals |
EP02705910.4A EP1354416B1 (en) | 2001-01-24 | 2002-01-23 | Enhanced conversion of wideband signals to narrowband signals |
BRPI0206664A BRPI0206664B1 (en) | 2001-01-24 | 2002-01-23 | improved conversion of broadband signals to narrowband signals |
ES02705910T ES2408220T3 (en) | 2001-01-24 | 2002-01-23 | Improved conversion of broadband signals to narrowband signals |
BR0206664-5A BR0206664A (en) | 2001-01-24 | 2002-01-23 | Enhanced conversion of broadband signals to narrowband signals |
AU2002240028A AU2002240028A1 (en) | 2001-01-24 | 2002-01-23 | Enhanced conversion of wideband signals to narrowband signals |
HK04105225A HK1062348A1 (en) | 2001-01-24 | 2004-07-16 | Apparatus and method for enhanced conversion of wideband signals to narrowband signals |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/771,508 US7113522B2 (en) | 2001-01-24 | 2001-01-24 | Enhanced conversion of wideband signals to narrowband signals |
US09/771,508 | 2001-01-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002060075A2 WO2002060075A2 (en) | 2002-08-01 |
WO2002060075A3 true WO2002060075A3 (en) | 2002-10-31 |
Family
ID=25092052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2002/001901 WO2002060075A2 (en) | 2001-01-24 | 2002-01-23 | Enhanced conversion of wideband signals to narrowband signals |
Country Status (11)
Country | Link |
---|---|
US (3) | US7113522B2 (en) |
EP (1) | EP1354416B1 (en) |
JP (3) | JP4330879B2 (en) |
KR (1) | KR100856684B1 (en) |
CN (1) | CN1292401C (en) |
AU (1) | AU2002240028A1 (en) |
BR (2) | BRPI0206664B1 (en) |
ES (1) | ES2408220T3 (en) |
HK (1) | HK1062348A1 (en) |
TW (1) | TW527790B (en) |
WO (1) | WO2002060075A2 (en) |
Families Citing this family (28)
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FI115329B (en) | 2000-05-08 | 2005-04-15 | Nokia Corp | Method and arrangement for switching the source signal bandwidth in a communication connection equipped for many bandwidths |
US7113522B2 (en) * | 2001-01-24 | 2006-09-26 | Qualcomm, Incorporated | Enhanced conversion of wideband signals to narrowband signals |
US7343282B2 (en) * | 2001-06-26 | 2008-03-11 | Nokia Corporation | Method for transcoding audio signals, transcoder, network element, wireless communications network and communications system |
US7305340B1 (en) * | 2002-06-05 | 2007-12-04 | At&T Corp. | System and method for configuring voice synthesis |
US6879833B2 (en) * | 2002-07-11 | 2005-04-12 | Sprint Spectrum L.P. | Method and system for vocoder bypass using differentiated telephone numbers |
US6865391B1 (en) | 2002-07-11 | 2005-03-08 | Sprint Spectrum L.P. | Method and system for vocoder bypass using electronic serial numbers |
US7203488B2 (en) * | 2002-11-08 | 2007-04-10 | Louis Luneau | Flexible software radio transceiver |
US8059663B1 (en) | 2003-07-10 | 2011-11-15 | Sprint Spectrum L.P. | Gateway-based system and method for tandem free operation |
US7398207B2 (en) | 2003-08-25 | 2008-07-08 | Time Warner Interactive Video Group, Inc. | Methods and systems for determining audio loudness levels in programming |
FI119533B (en) * | 2004-04-15 | 2008-12-15 | Nokia Corp | Coding of audio signals |
US7328027B1 (en) | 2004-05-11 | 2008-02-05 | Sprint Spectrum L.P. | Method for vocoder selection based on loads in coverage areas of a wireless wide area network |
US7089011B1 (en) | 2004-05-11 | 2006-08-08 | Sprint Spectrum L.P. | Method and system for selective call routing for transcoder free operation |
JP4903053B2 (en) * | 2004-12-10 | 2012-03-21 | パナソニック株式会社 | Wideband coding apparatus, wideband LSP prediction apparatus, band scalable coding apparatus, and wideband coding method |
US8086451B2 (en) * | 2005-04-20 | 2011-12-27 | Qnx Software Systems Co. | System for improving speech intelligibility through high frequency compression |
EP2207166B1 (en) | 2007-11-02 | 2013-06-19 | Huawei Technologies Co., Ltd. | An audio decoding method and device |
CN101499278B (en) * | 2008-02-01 | 2011-12-28 | 华为技术有限公司 | Audio signal switching and processing method and apparatus |
US9947340B2 (en) * | 2008-12-10 | 2018-04-17 | Skype | Regeneration of wideband speech |
GB2466201B (en) * | 2008-12-10 | 2012-07-11 | Skype Ltd | Regeneration of wideband speech |
GB0822537D0 (en) | 2008-12-10 | 2009-01-14 | Skype Ltd | Regeneration of wideband speech |
CN101964189B (en) * | 2010-04-28 | 2012-08-08 | 华为技术有限公司 | Audio signal switching method and device |
CN103295578B (en) | 2012-03-01 | 2016-05-18 | 华为技术有限公司 | A kind of voice frequency signal processing method and device |
US10043535B2 (en) | 2013-01-15 | 2018-08-07 | Staton Techiya, Llc | Method and device for spectral expansion for an audio signal |
CN105378831B (en) | 2013-06-21 | 2019-05-31 | 弗朗霍夫应用科学研究促进协会 | For the device and method of improvement signal fadeout of the suitching type audio coding system in error concealment procedure |
US10045135B2 (en) | 2013-10-24 | 2018-08-07 | Staton Techiya, Llc | Method and device for recognition and arbitration of an input connection |
US10043534B2 (en) | 2013-12-23 | 2018-08-07 | Staton Techiya, Llc | Method and device for spectral expansion for an audio signal |
US9407989B1 (en) | 2015-06-30 | 2016-08-02 | Arthur Woodrow | Closed audio circuit |
AT521591B1 (en) | 2018-06-12 | 2020-10-15 | Asta Elektrodraht Gmbh | Multiple parallel conductors with spacer plates |
CN112887928B (en) * | 2021-03-01 | 2022-08-12 | 京东科技控股股份有限公司 | Broadband narrow-band communication conversion device |
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US5103459A (en) * | 1990-06-25 | 1992-04-07 | Qualcomm Incorporated | System and method for generating signal waveforms in a cdma cellular telephone system |
EP0657873A2 (en) * | 1993-12-06 | 1995-06-14 | Hitachi Denshi Kabushiki Kaisha | Speech signal bandwidth compression and expansion apparatus, and bandwidth compressing speech signal transmission method, and reproducing method |
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-
2001
- 2001-01-24 US US09/771,508 patent/US7113522B2/en not_active Expired - Lifetime
-
2002
- 2002-01-23 EP EP02705910.4A patent/EP1354416B1/en not_active Expired - Lifetime
- 2002-01-23 WO PCT/US2002/001901 patent/WO2002060075A2/en active Application Filing
- 2002-01-23 KR KR1020037009723A patent/KR100856684B1/en not_active IP Right Cessation
- 2002-01-23 BR BRPI0206664A patent/BRPI0206664B1/en unknown
- 2002-01-23 BR BR0206664-5A patent/BR0206664A/en not_active IP Right Cessation
- 2002-01-23 CN CNB028040465A patent/CN1292401C/en not_active Expired - Fee Related
- 2002-01-23 ES ES02705910T patent/ES2408220T3/en not_active Expired - Lifetime
- 2002-01-23 JP JP2002560291A patent/JP4330879B2/en not_active Expired - Fee Related
- 2002-01-23 AU AU2002240028A patent/AU2002240028A1/en not_active Abandoned
- 2002-01-24 TW TW091101134A patent/TW527790B/en not_active IP Right Cessation
-
2004
- 2004-07-16 HK HK04105225A patent/HK1062348A1/en not_active IP Right Cessation
-
2006
- 2006-09-22 US US11/534,327 patent/US7577563B2/en not_active Expired - Fee Related
-
2009
- 2009-02-17 JP JP2009033854A patent/JP5199147B2/en not_active Expired - Fee Related
- 2009-07-03 JP JP2009158340A patent/JP5129201B2/en not_active Expired - Fee Related
- 2009-07-10 US US12/501,196 patent/US8358617B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5103459A (en) * | 1990-06-25 | 1992-04-07 | Qualcomm Incorporated | System and method for generating signal waveforms in a cdma cellular telephone system |
US5103459B1 (en) * | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
EP0657873A2 (en) * | 1993-12-06 | 1995-06-14 | Hitachi Denshi Kabushiki Kaisha | Speech signal bandwidth compression and expansion apparatus, and bandwidth compressing speech signal transmission method, and reproducing method |
Non-Patent Citations (1)
Title |
---|
YASUKAWA H: "SPECTRUM BROADENING OF TELEPHONE BAND SIGNALS USING MULTIRATE PROCESSING FOR SPEECH QUALITY ENHANCEMENT", IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS, COMMUNICATIONS AND COMPUTER SCIENCES, INSTITUTE OF ELECTRONICS INFORMATION AND COMM. ENG. TOKYO, JP, vol. E78-A, no. 8, 1 August 1995 (1995-08-01), pages 996 - 998, XP000536056, ISSN: 0916-8508 * |
Also Published As
Publication number | Publication date |
---|---|
JP5199147B2 (en) | 2013-05-15 |
CN1292401C (en) | 2006-12-27 |
US7113522B2 (en) | 2006-09-26 |
JP4330879B2 (en) | 2009-09-16 |
US7577563B2 (en) | 2009-08-18 |
JP5129201B2 (en) | 2013-01-30 |
EP1354416B1 (en) | 2013-04-24 |
US20030012221A1 (en) | 2003-01-16 |
JP2004524560A (en) | 2004-08-12 |
WO2002060075A2 (en) | 2002-08-01 |
ES2408220T3 (en) | 2013-06-19 |
US20070162279A1 (en) | 2007-07-12 |
TW527790B (en) | 2003-04-11 |
KR20030072603A (en) | 2003-09-15 |
JP2010016828A (en) | 2010-01-21 |
JP2009187012A (en) | 2009-08-20 |
KR100856684B1 (en) | 2008-09-04 |
HK1062348A1 (en) | 2004-10-29 |
CN1488137A (en) | 2004-04-07 |
BR0206664A (en) | 2004-12-28 |
US20090281796A1 (en) | 2009-11-12 |
AU2002240028A1 (en) | 2002-08-06 |
US8358617B2 (en) | 2013-01-22 |
BRPI0206664B1 (en) | 2018-09-25 |
EP1354416A2 (en) | 2003-10-22 |
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